Heating apparatus.



D. J. F. BUCK. HEATING APPARATUS.

APPLICATION FILED MAY 7, 1913.

Patented Dec. 2, 1918.

2 SHEETS-SHEET l.

(In j m7266666: 2Q/217%@ Ey l D..J. I'. BUCK. HEATING APPARATUS.

APPLICATION FILED MAY 7, 1913.

Patented Deo. 2, 1913.

2 SHEETS-SHEET 2 Zfjz' 577265565' COLUMBIA PLANOQRAPH co.. WASHINGTON D C ment of parts which is mo-re advantageous FFI@ DANIEL JT. F. BUCK, OF CHICAGO, ILLINOIS.

HEATING APPARATUS.

Specication of Letters Patent.

Application led May 7, 1913.

Patented Dec. 2, 1913.

Serial No. 765,999.

T0 all whom t may concern:

Be it known that I, DANIELl J. F. BUCK, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Heating Apparatus, of which the following is a full, clear, co-ncise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to heating apparatus and particularly gas water heaters.

My invention has for one of its objects the employment of a simplified construction whereby the `greatest efficiency in the operation of the heater is attained.

In my Patents Nos. 817,219 and 851,400, issued to me April 10th, 1906 and April 23rd, 1907, respectively, I describe aheater consisting of outer and inner concentric frames, each frame consisting of upper and lower annular heater-sections connected by pipes or passageways, through the center of which flues pass for receiving the heat from burners placed below the heater frames.

My present application shows an arrangethan those of my prior patents.

It contemplates the employment of single chambers or compartments in each of the.

heater sections instead of having concentrically-arranged upper and lower sections, and these chambers communicate directly with all of the water tubes.

It contemplates also the employment of a rst or central pipe to conduct heat, a

second pipe to conduct the water or other fluid to be heated, this second pipe surrounding the first pipe, and a third pipe surroundp ing the rst and second pipes, which also conducts heat.

My improved means of arranging the pipes, iiues and sections will be best understood by reference to the accompanying' Y drawings, in which:

Figure 1 is a cross-sectional view of the may be of any suitable construction, andl which is provided at its lower portion with a gas or other fuel burner 5 connected with a pipe 6 running to the source of fuel supply. The heater consists of the upper frame or section 7 which is connected with the lower frame or section 8 by means of the pipes 9. The frames 7 and 8 contain compartments or chambers 10 and 11 respectively, these chambers finding communication with each other through the pipes 9. Of these pipes 9 there may be any number and they preferably enter the lower and upper walls, respectively, of the upper and lower heater sections or frames 7 and S. Through leach of the pipes 9 I pass a iiue 12, a central flue 13 being of greater length than the flues 12 Iarranged about the central flue 13. The flue 13 and flues 12 are of smaller diameter than the pipes or passageways 9 through which they extend; therefore, annular spaces 14 are left, forming the communicating passages between the chambers 10 and 11 of the upper heater section 7 and the lower heater section 8, respectively. The central flue 13 extends from the lower part of the heater section 8, with which it has screwthreaded engagement, through the center of the heater sections, the center of the boiler shell and out to the atmosphere. It has screwfthreaded engagement at the top with the bushing 15, which, in turn, on its outer lower portion has screw-threaded engagement with the T 16. This T 16 connects with a pipe 17 having screw-threaded engagement at 18. The bushing 15 and the T 16 form a closure for the top of the pipe 17. The pipe 17 connects, preferably by a screw-threaded connection, with the upper part of the heater section 7, thus forming an annular passageway 19 about the flue 13. Surrounding the flue 13 and the pipe 17 is a third pipe which may be the inner tube 20 of the boiler. The inner tube 20 is secured, preferably by Welding, at 21, with the boiler section 22, which is secured to the outer shell 4 preferably by rivets 23. The inner tube 20 is secured, preferably by welding, at 211, heater, the connecting pipes and passages, and the boiler shell, Fig. 2 is an enlarged top view of the burner section taken on the line 2-2 of Fig. l, and Fig. 3 is an enlarged with the boiler section 25, which is secured to the outer boiler shell t, preferably by rivets at 26.

The heater sections 7 and S, as shown clearly in Fig. 1 of the drawings, are provided at their outer edges witlrthe upwardly-extending rims 27, 27 which serve to catch the moisture which may condense upon the upper surfaces of the heater sections 7 and 8, and prevent the moisture from overflowing into the burner 5 or the base of the boiler. In the lower part of the heater section 7 and in the upper part of the heater section 8 there are provided tapered openings to receive the series of pipes 9, which are provided with inwardly-Haring ends adapted to fit tightly and snugly against the tapered surfaces of the said openings. The extending ends of the pipes 9 are upset at their ends to form the flanges 28, 2S, whereby there is secured a water-tight joint between the walls of the heater sections 7 and S and the pipes 9. The top of the heater section 7 and the bottom of the heater section 8 are provided with projections 29, in

- which are tapered openings, through which the iues 12 extend, the flues being provided with an outward flare at their ends. The flared portions of the flues 12 are made to fit tightly and snugly against the tapered openings in the heater sections 7 and 8.

The water or other fluid to be heated is fed to the lower heater section through, first the cold water charging pipe 30, which is secured to the top of the boiler section 25 at the reinforced point 31. The cold -water passes from the lower end of the `pipe 30 through the bottom of the tank 4 into the pipe 32, thence through T 33, thence through the connection 35 into the chamber 11. The T 33 has a closed end 34, which may be opened when desired. The heated water passes to the supply system from the upper heater section through the passage 19 of the pipe 17, thence through the nipple 36 and the T 37. The excess of heated water flowing through the passage 19, which may not be needed for the system to be supplied, flows back into the boiler through the nipple 3S secured to the lower end of the T 37 and the top of the boiler section 25 at the reinforced portion thereof, 39. There is provided at 40 a connection which may be used with a range or furnace. I provide at the end approximately opposite the connection 35 entering the chamber 11, an opening 41, having a suitable plug. This is provided to permit the placing of the pipe 32 with the connections 33, 34 and 35 on either side of the entire heater section.

It will be seen from my improved construction illustrated in the drawings that when the heater of my invention is in operation the water in the chambers 10 and 11 and the passages 14 extending from the chamber 11 into chamber 10 and the water in the passage 19 is surrounded on the inside and outside by an envelop of heat fur nished from the burner 5. This heat passes around the outside of the burner sections,

around Vpipes 9, through iues 12 and the cenof the entire burner section and beneath the boiler` section 22 into the pipe 20.

the ends of the iues 12 are flared and made to fit snugly in a water-tight joint against the tapered surfaces of the openings in the upper wall of the heater section 7 and the lower wall of the heater section 8. The pipe 17 is secured to the top wall of the heater section 7.

By securing the pipes and the flues to the heater sections in the simplified manner described, I dispense with objectionable and expensive methods of fastening the pipes and iiues and do away with bushings and tie-rods. Y

Thile I have shown my invention in the particular embodiment above-described, I do not, however, limit myself to this exact construction, as I may employ other equivheating compartments, the pipes on each side of said annular passage being arranged to have hot gases passed therethrough to heat the fiuid in said annular passage.

2. In a heater, the combination with liuidheating compartments, of tubes connecting Y said compartments, a first pipe constituting a fine for hot gases extending through said compartments and a substantial distance beyond the same on one side thereof, a second pipe disposed around a portion of said first pipe, and a third pipe disposed around said second pipe, said. first and second pipes forming between them an annular passage of relatively small cross-section 'arranged to have passed therethrough Huid previously heated in said fluid-heating compartments, the space between said second and third pipes constituting a flue for the passage of hot gases.

3. In a heater, the combination of a compartment for containing fluid to be heated, a Huid passageway extending vertically from said compartment, and a flue for hot gases on each side of said passageway.

4. In a heater, the combination with two fluid heating chambers, one placed overthe other, in which fluid is to be heated, said chambers being connected by tubes, of flues extending through said tubes and secured to the bottom of the framework of one of said chambers and to the top of the other chamber, a central pipe arranged to have hot gases passed therethrough extending from the bottom of the lower of said chambers through said framework, and a second pipe surrounding said central pipe, said pipes forming between them an annular passage of relatively small cross section, said annular passage having communication with said fluid heating chambers so that fluid heated in said chambers is subsequently superheated in said annular passage.

5. In a heater, the combination with upper and lower chambers, of pipes having tapered ends connecting with said chambers, said tapered ends being upset toform flanges whereby a water-tight oint is secured with the framework surrounding said chambers, of pipes or flues extending through said chambers and through the pipes communicating with said chambers, said flues having tapered ends which are secured to the framework containing said chambers, said framework having projections on its upper peripheries to serve as catches for moisture, a pipe extending from the bottom of the lowermost framework through said compartments, a second pipe extending from the top of the uppermost of said framework and surrounding the first pipe, and a third pipe partially surrounding both of said last-mentioned pipes.

6. In a heater, the combination of a compartment for containing fluid to be heated, a fluid passage-way of relativelysmall crosssection arranged to have passed therethrough fluid previously heated in said compartment and flues for hot gases on each side of said passage-way.

7. In combination, a hollow steel shell constituting a compartment arranged to receive fluid to be heated, means for admitting fluid to .said compartment and means for withdrawing fluid therefrom, together with a burner disposed in proximity to said shell, said shell having a projection on the top thereof arranged to catch water of condensation.

8. In combination a tank, a pipe passing through said tank forming an annular fluid chamber between the tank and the pipe, a hollow shell constituting a heating compartment disposed below said annular compartment, means affording communication between the annular compartment and the hollow shell, av burner disposed in proximity to the shell, and a second pipe having communication with said hollow shell passing longitudinally through the first mentioned pipe, there being an annular flue formed between said pipes, said flue being arranged to have hot gases from said burner pass therethrough to superheat fluid previously heat-ed in said shell and to warm the fluid in said annular fluid compartment.

9. In combination, a hollow shell constituting a compartment for fluid to be heated, a burner disposed below said shell, a pipe disposed above said shell, a flue passing through said pipe forming an annular fluid passageway between the pipe and flue, a second pipe disposed around the first pipe forming an annular flue, said annular fiuid passage having communication with said hollow steel shell and said flues being arranged to have hot gases from said burner enter said flues at their lower ends and pass therethrough to heat a column of fluidV in said annular fluid passage.

In witness whereof, I hereunto subscribe my name this fifth day of May, A. D. 1913.

DANIEL J. F. BUCK.

Witnesses:

HARVEY L. Hanson, LEONARD E. BoGUn.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

